Thanks Achim for your reply..<div><br></div><div><span class="Apple-style-span" style="font-family: 'Times New Roman'; font-size: medium; "><pre>>v.db.addcol should be there by default</pre><pre>>Maybe there has to be a table connected to the vector map!
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>This can bo done with 'v.db.addtable'.</pre><pre>I'm not familiar with Vector data management in GRASS so I have few dumb questions</pre><pre>1- How can I know that this particular vector data does/doesn't have a table?</pre>
<pre>2- Since this is a vector, created from a raster (r.to.vect) can I add a table when I create the vector?</pre><pre>3- How can I define a table in order to be used by v.colors?</pre><pre><br></pre><pre>Sorry and thanks for your help</pre>
<pre>Luisa</pre></span></div>